The adverb 愈 and its structures
Let’s consider the adverb 愈 and the 愈来愈… and 愈…愈… structures.
The adverb 愈
Expressions like “even stronger”, “even harder” are formed with the help of the adverb 愈 
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It is used to strengthen an adjective, and it is placed before the adjective it strengthens.
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It is used to strengthen an adjective, and it is placed before the adjective it strengthens.Examples
世界变得愈小，异族婚姻的数量随之增多
As the world grows smaller, the number of interracial marriages increases
shìjiè biàn de yù xiǎo, yìzú hūnyīn de shùliàng suí zhī zēngduō
你愈快办成事，对我们大家都好
The sooner you finish it, the better for all of us
nǐ yù kuài bàn chéng shì, duì wǒmen dàjiā dōu hǎo
The 愈来愈… structure
The 愈来愈… structure indicates a gradual increase in the emotional degree of a feeling or strengthening of an object’s features.
This structure can be placed before adjectives and verbs with complements.
structure indicates a gradual increase in the emotional degree of a feeling or strengthening of an object’s features.
This structure can be placed before adjectives and verbs with complements.Examples
人们愈来愈担心会重开战火
People’s fear of the resumption of hostilities is increasing
rénmen yù lái yù dānxīn huì chóng kāi zhànhuǒ
火车愈来愈慢，最后完全停了
The train was going slower and slower until it stopped completely
huǒchē yù lái yù màn, zuìhòu wánquán tíng le
The 愈…愈… structure
The 愈…愈… strcture is similar to 愈来愈…, but it indicates changes due to certain factors.
The factor comes after the first 愈, and the change comes after the second 愈.
strcture is similar to 愈来愈…, but it indicates changes due to certain factors.
The factor comes after the first 愈, and the change comes after the second 愈.Examples
他们愈往北去，天气就变得愈冷
The further north they traveled, the colder it got
tāmen yù wǎng běi qù, tiānqì jiù biàn de yù lěng
他愈讲愈起劲
The longer he talked, the more energetic his speech got
tā yù jiǎng yù qǐjìng
There can be two subjects in sentences with this structure. In this case, each of the subjects are placed before 愈.
Examples
光线愈强旋转愈快
The stronger the light, the faster the rotation
guāngxiàn yù qiáng xuánzhuǎn yù kuài